53672438081 has 4 divisors (see below), whose sum is σ = 53794699200. Its totient is φ = 53550176964.

The previous prime is 53672438069. The next prime is 53672438089. The reversal of 53672438081 is 18083427635.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53672438081 - 2²² = 53668243777 is a prime.

It is a super-2 number, since 2×53672438081² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53672438089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61129901 + ... + 61130778.

It is an arithmetic number, because the mean of its divisors is an integer number (13448674800).

Almost surely, 2^53672438081 is an apocalyptic number.

It is an amenable number.

53672438081 is a deficient number, since it is larger than the sum of its proper divisors (122261119).

53672438081 is a wasteful number, since it uses less digits than its factorization.

53672438081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122261118.

The product of its (nonzero) digits is 967680, while the sum is 47.

The spelling of 53672438081 in words is "fifty-three billion, six hundred seventy-two million, four hundred thirty-eight thousand, eighty-one".